EP1840737A1 - Systèmes et procédés de permutation de données de configuration de programme - Google Patents

Systèmes et procédés de permutation de données de configuration de programme Download PDF

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Publication number
EP1840737A1
EP1840737A1 EP07001097A EP07001097A EP1840737A1 EP 1840737 A1 EP1840737 A1 EP 1840737A1 EP 07001097 A EP07001097 A EP 07001097A EP 07001097 A EP07001097 A EP 07001097A EP 1840737 A1 EP1840737 A1 EP 1840737A1
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EP
European Patent Office
Prior art keywords
program
configuration data
primary key
frequency
audio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07001097A
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German (de)
English (en)
Inventor
Chih-Cheng Chang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AU Optronics Corp
Original Assignee
BenQ Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BenQ Corp filed Critical BenQ Corp
Publication of EP1840737A1 publication Critical patent/EP1840737A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/488—Data services, e.g. news ticker
    • H04N21/4888—Data services, e.g. news ticker for displaying teletext characters

Definitions

  • the invention relates to display apparatuses, and more particularly, to systems and methods for swapping program configuration data.
  • TVs are typically equipped with a system for swapping program configuration data.
  • the conventional data structure for storing a program list containing program configuration data is not optimized for efficient swapping of program configuration data.
  • the swapping of program configuration data may consume excessive time, decreasing user convenience.
  • an efficient method for swapping program configuration data and a system thereof to reduce swapping time is desirable.
  • the invention provides an efficient method for swapping program configuration data and a system thereof to reduce swapping time.
  • An embodiment of a method for swapping program configuration data comprises the following steps.
  • a program profile table comprising the first program number and a first primary key for mapping to the first program configuration data, and the second program number and a second primary key for mapping to the second program configuration data is established.
  • the first primary key in the program profile table is swapped for the second primary key.
  • the electronic apparatus may be a CRT display, a plasma display panel (PDP) display, a liquid crystal display (LCD), an organic light-emitting diode display (OLED) or a TV box.
  • PDP plasma display panel
  • LCD liquid crystal display
  • OLED organic light-emitting diode display
  • the first program configuration data comprises a first index
  • the second program configuration data comprises a second index.
  • the first and second primary keys in the program profile table are respectively linked to the first and second indices, thereby enabling the first and second program numbers in the program profile table to map to the first and second configuration data.
  • step (b) after swapping the first primary key for the second primary key in the program profile table, the first and second program numbers are respectively linked to the second and first indices via the second and first primary keys for respectively mapping to the second and first program configuration data.
  • the second configuration data comprises a second frequency, a second video standard and a second audio standard.
  • the method further comprises the following steps after step (b).
  • step (c) the second frequency of the second program configuration data is acquired from the program configuration table, and the second frequency is locked on to.
  • step (d) the second video standard of the second program configuration data is acquired from the program configuration table, and video data carried by the second frequency is decoded based on the second video standard.
  • the second audio standard of the second program configuration data is acquired from the program configuration table, and audio data carried by the second frequency is decoded based on the second audio standard.
  • step (f) the decoded video and audio data are outputted.
  • step (c) the electronic apparatus originally outputs video and audio data based on the first program configuration data.
  • the electronic apparatuses originally plays the program content of the first program, and, after executing the method for swapping program configuration data, the program content of the first program shifts to correspond to the second program, and the program content of the second program shifts to correspond to the first program.
  • the electronic apparatus plays the program content of the first program after swapping program configuration data, i.e., the electronic apparatus plays the program content of the second program before swapping program configuration data.
  • the electronic apparatus further stores a program status table comprising the first program number, a first valid flag, the second program number and a second valid flag.
  • the first and second valid flags respectively indicate whether the first and second program numbers are associated with valid frequencies.
  • Step (b) further comprises swapping the first valid flag corresponding to the first program number for the second valid flag corresponding to the second program number in the program status table.
  • the program profile table further comprises a first reserved flag and a second reserved flag respectively indicating whether the first and second program numbers are in a reserved status or an unreserved status.
  • Step (b) further comprises setting the first reserved flag corresponding to the first program number, and the second reserved flag corresponding to the second program number to the unreserved statuses.
  • methods for swapping program configuration data do not directly swap program configuration data.
  • the method establishes a relationship between program configuration data and primary keys, and swaps primary keys.
  • An embodiment of a system for swapping program configuration data comprises a memory device and a processing unit.
  • the memory device stores the first and second program configuration data, and a program profile table.
  • the program configuration table comprises the first program number and a first primary key for mapping to the first program configuration data, and the second program number and a second primary key for mapping to the second program configuration data.
  • the processing unit swaps the first primary key in the program profile table for the second primary key.
  • the electronic apparatus may be a CRT display, a plasma display panel (PDP) display, a liquid crystal display (LCD), an organic light-emitting diode display (OLED) or a TV box.
  • PDP plasma display panel
  • LCD liquid crystal display
  • OLED organic light-emitting diode display
  • the first program configuration data comprises a first index
  • the second program configuration data comprises a second index.
  • the first and second primary keys in the program profile table are respectively linked to the first and second indices, thereby enabling the first and second program numbers in the program profile table to map to the first and second configuration data.
  • the processing unit swaps the first primary key for the second primary key in the memory device, the first and second program numbers are respectively linked to the second and first indices via the second and first primary keys for respectively mapping to the second and first program configuration data.
  • the second configuration data in the memory device comprises a second frequency, a second video standard and a second audio standard.
  • the processing unit further acquires the second frequency, the second video standard and the second audio standard from the second program configuration data in the memory device.
  • the system further comprises a tuner, a video encoder, an audio processor and an output unit.
  • the tuner locks on to the second frequency.
  • the video decoder decodes video data carried by the second frequency based on the second video standard.
  • the audio processor decodes audio data carried by the second frequency based on the second audio standard.
  • the output unit outputs the decoded video and audio data.
  • the electronic apparatuses originally plays the program content of the first program, and, after executing the method for swapping program configuration data, the program content of the first program shifts to correspond to the second program, and the program content of the second program shifts to correspond to the first program.
  • the electronic apparatus plays the program content of the first program after swapping program configuration data, i.e., the electronic apparatus plays the program content of the second program before swapping program configuration data.
  • the memory device further stores a program status table comprising the first program number, a first valid flag, the second program number and a second valid flag.
  • the first and second valid flags respectively indicate whether the first and second program numbers are associated with valid frequencies.
  • the program profile table in the memory device further comprises a first reserved flag and a second reserved flag respectively indicating whether the first and second program numbers are in a reserved status or an unreserved status.
  • the processing unit After swapping the first primary key for the second primary key in the memory device, the processing unit further sets the first reserved flag corresponding to the first program number, and the second reserved flag corresponding to the second program number to the unreserved statuses.
  • systems for swapping program configuration data introduced by the invention, do not directly swap program configuration data.
  • the system establishes the relationship between program configuration data and primary keys, and swaps primary keys.
  • program herein refers to a medium of communication or access. In other district outside of Europe, such as the U.S.A, "program” is usually called “channel”. Hence, a method, system or medium storage for program changing has equivalent interpretation as a method, system, or medium storage for channel changing.
  • Fig. 1 is a diagram of the system architecture applicable to an embodiment of a system 10 for swapping program configuration data comprising a tuner 11, an audio processor 12, a video decoder 13, a teletext processor 14, a processing unit 15, a memory device 16 and an output unit 17.
  • the system 10 for swapping program configuration data 10 may be installed in TV boxes, or in various display apparatuses such as CRT displays, plasma display panel (PDP) displays, liquid crystal displays (LCDs), organic light-emitting diode displays (OLEDs) and others.
  • the memory device 16 may be read only memory (ROM), flash memory or random access memory (RAM) to store program modules executed by the processing unit 15.
  • the processing unit 15 loads and executes program modules, with the tuner 11, audio processor 12, video decoder 13 and teletext processor 14, to complete automated program installation.
  • the tuner 11 locks on to a particular frequency, and acquires video and audio signals carried on the frequency.
  • the teletext processor 14 acquires teletext signals.
  • the tuner 11 may first select a specific frequency such as 176.00 MHz, and the video decoder 13, the audio processor 12 and the teletext processor 14 then detect whether the selected frequency carries video, audio or teletext signals capable of being displayed or played. If so, the tuner locks on to the selected frequency.
  • the details for locking on to a particular frequency are well-known in the art, and are only briefly described herein.
  • the output unit 17 outputs the decoded video or audio data.
  • Fig. 2 is a diagram of exemplary data structure.
  • the memory device 16 stores a primary key table 21, a program profile table 23, a program configuration table 25 and a program status table 29.
  • the data structure may be implemented in various storage such as database tables, data objects, file records or similar, in various data management systems such as database management systems, data object management systems, file management systems or similar.
  • the primary key table 21 contains two fields, primary key 21 a and assigned flag 21b, storing information indicating whether a particular primary key is assigned. For example, a record of the primary key table 21 storing a primary key "1" and an assigned flag “true” or “1” indicates that the primary key "1" has been assigned. A record of the primary key table 21 storing a primary key "2" and an assigned flag “false” or “0” indicates that the primary key "2" has not been assigned.
  • the program profile table 23 contains three fields, program number 23a, primary key 23b and reserved flag 23c, storing information indicating that a primary key is associated with a program number and whether a frequency corresponding to the program number is a reserved program.
  • a record of the program profile table 23 storing a primary key "1", a program number "1” and a reserved flag “true” or “1” indicates that the primary key "1” is associated with the program number "1" and the frequency corresponding to the program number "1" is a reserved program.
  • a record of the program profile table 23 storing a primary key "2", a program number "2" and a reserved flag “false” or “0” indicates that the primary key "2" is associated with the program number "2" and the frequency corresponding to the program number "2" is not a reserved program.
  • the primary key stored in the primary key field 23b of the program profile table 23 can also be a foreign key for associating with a particular record of another table, which has the same primary key.
  • the program configuration table 25 contains five fields, primary key 25a, frequency 25b, video standard 25c, audio standard 25d and program name 25e, storing information indicating that a particular primary key is associated with a frequency, video signals carried by the frequency correspond to a video standard, audio signals carried by the frequency correspond to an audio standard, and the frequency corresponds to a program name.
  • the frequency field 25b may store a number ranging from 0 to 65,535 to represent a particular frequency when two bytes are allocated to store the frequency.
  • the video standard field 25c may store a number ranging from 0 to 3 to represent a particular video standard.
  • the audio standard field 25d may store a number ranging from 0 to 15 to represent a particular audio standard.
  • the video standard field thereof stores "1", "2” and “3” respectively indicating that video signals carried by a particular frequency correspond to the National TV Standards Committee (NTSC) standard, Phase Alternating Line (RAL) standard and Sequential Couleur Avec Memoire (SECAM) standard.
  • the audio standard field thereof stores "1", "2” and “3” respectively indicating that audio signals carried by a particular frequency correspond to the BG, DK and I standards.
  • the primary key stored in the primary key field 25a of the program configuration table 25 can also be a foreign key for associating with a particular record of another table, which has the same primary key.
  • the program status table 29 contains two fields, program number 29a and valid flag 29b, storing information indicating whether a particular program number is associated with a valid frequency.
  • the valid frequency indicates a frequency carrying playable video, audio or teletext data.
  • a record of the program status table 29 storing a program number "1" and a valid flag “true” or “1” indicates that a frequency corresponding to the program number "1" is a valid frequency.
  • a record of the program status table 29 storing a program number "2" and a valid flag “false” or “0” indicates that the program number "2" has not been associated with any frequency or a frequency corresponding to the program number "2" is an invalid frequency.
  • a program number stored in one program number field 29a of the program status table 29 can also be a foreign key for associating with a particular record of another table, which has the same program number.
  • the content of program status table 29 is first inspected to determine whether a frequency corresponding to the next or prior program number is an invalid frequency in order to avoid selecting an invalid program number (i.e. to avoid locking on to an invalid frequency).
  • Fig. 3 is a flowchart of an embodiment of a method for swapping program configuration data.
  • the method begins in step S31 to receive a swapping request indicating that configuration data corresponding to the current program number is swapped for that corresponding to another program number.
  • relevant records in the program profile table 23 are updated according to the received swapping request.
  • Step S33 may search for a record corresponding to the current program number in the program profile table 23, and a record corresponding to another program number in the program profile table 23, and then, two primary keys 23b of the searched records are swapped.
  • Fig. 4 is a flowchart of an embodiment of a method for swapping program configuration data.
  • the method for swapping program configuration data is employed to swap configuration data corresponding to the current program number, such as frequency, video standard, audio standard, program name and others, for that corresponding to another program number, and lock on to the swapped frequency corresponding to the current program number, resulting in playing audio, video or teletext signals carried by the swapped frequency.
  • the method begins in step S411 to receive a swapping request indicating that configuration data corresponding to the current program number is swapped for that corresponding to another program number.
  • relevant records in the program profile table 23 are updated according to the received swapping request.
  • Step S421 may search for a record corresponding to the current program number in the program profile table 23, and a record corresponding to another program number in the program profile table 23, swap for two primary keys 23b of the searched records and set the reserved flags 23c of the searched records to "0" or "false".
  • these two program numbers are associated with different program configuration data, i.e. swapped program configuration data, via the swapped primary keys.
  • reserved flags 23c of the searched records must be set to "0" or "false”.
  • relevant records in the program status table 29 are updated according to the received swapping request.
  • Step S423 may search for a record corresponding to the current program number in the program status table 29, and a record corresponding to another program number in the program profile table 29, and swap for two valid flags 29b of the searched records.
  • a frequency corresponding to the current program number is set to the tuner 11.
  • Step S431 may search for a record of the program configuration table 25 corresponding to the current program number via the corresponding primary key 23b, acquire the frequency 25b of the searched record, direct the tuner 11 to lock on to the frequency by setting the acquired frequency to the tuner 11. The audio, video and teletext signals carried by the frequency are then acquired.
  • the video standard corresponding to the current program number is set to the video decoder 13.
  • Step S433 may search for a record of the program configuration table 25 corresponding to the current program number via the corresponding primary key 23b, acquire video standard 25c of the searched record, and direct the video decoder 13 to decode video data based on the acquired video standard by setting the acquired video standard to the video decoder 13.
  • the audio standard corresponding to the current program number is set to the audio processor 12.
  • Step S435 may search for a record of the program configuration table 25 corresponding to the current program number via the corresponding primary key 23b, acquire audio standard 25d of the searched record, and direct the audio processor 12 to decode audio data based on the acquired audio standard by setting the acquired audio standard to the audio processor 12. It is to be understood that the orders of steps S433 and S435 may be exchanged.
  • step S441 audio, video and teletext data carried by the locked frequency is played and displayed.
  • the program profile table 23, program status table 29 and program configuration table 25 are respectively shown in Figs. 5a to 5c.
  • a swapping request indicating that configuration data corresponding to the current program number "1" is to be swapped for that corresponding to an program number "3" is received.
  • a record of the program profile table 23 corresponding to the current program number "1” is searched for, a record of the program profile table 23 corresponding to program number "3" (as shown in Fig. 5a) is searched for, two primary keys of the searched records are swapped, and reserved flags of the searched records are set to "0", the modification result as shown in Fig. 6a.
  • step S423 When executing step S423, a record of the program status table 29 corresponding to the current program number "1" is searched for, a record of the program status table 29 corresponding to another program number "3" (as shown in Fig. 5b) is searched for, and two valid flags of the searched records are swapped, the modification result as shown in Fig. 6b.
  • the swapping operation executed by the described method is more efficient because it takes no effort to modify the content of the program configuration table 25.
  • the frequency "495.25" newly corresponding to the program number "1” is set to the tuner 11.
  • the video standard "1" newly corresponding to the program number "1” is set to the video decoder 13.
  • the audio standard "1" newly corresponding to the program number "1” is set to the audio processor 12.
  • step S441 audio, video and teletext data carried by the locked frequency "495.25" are displayed and played.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)
EP07001097A 2006-03-28 2007-01-19 Systèmes et procédés de permutation de données de configuration de programme Withdrawn EP1840737A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200610071443 CN101047818B (zh) 2006-03-28 2006-03-28 频道配置数据对调系统及方法

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EP1840737A1 true EP1840737A1 (fr) 2007-10-03

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Cited By (1)

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CN106303716A (zh) * 2016-08-31 2017-01-04 无锡天脉聚源传媒科技有限公司 视频匹配的方法及装置

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EP0309878B1 (fr) 1987-09-30 1994-03-09 Deutsche Thomson-Brandt GmbH Procédé et/ou dispositif de programmation pour appareils audio ou vidéo
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EP0309878B1 (fr) 1987-09-30 1994-03-09 Deutsche Thomson-Brandt GmbH Procédé et/ou dispositif de programmation pour appareils audio ou vidéo
US5943605A (en) 1997-04-16 1999-08-24 Lucent Technologies Inc. Arrangement for controlling extraction of data from a broadband digital stream employing a symbol table for translating symbolic program names to program and channel numbers

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Publication number Priority date Publication date Assignee Title
CN106303716A (zh) * 2016-08-31 2017-01-04 无锡天脉聚源传媒科技有限公司 视频匹配的方法及装置

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